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authorGreg Ungerer <gerg@snapgear.com>2007-07-16 02:38:28 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 12:05:37 -0400
commit57c8f63e8e7a4a95d7fcc49e3953341fb4039899 (patch)
treecf0bd22654e4aff40c5d11775e949aba558922df /mm/nommu.c
parent54a3bdd76e82d7f64e5504409c55b51e48c3a10a (diff)
nommu: stub expand_stack() for nommu case
Be consistent with VM mmap, implement expand_stack(). We can't actually do anything other than return an error in the no MMU case though. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/nommu.c')
-rw-r--r--mm/nommu.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/nommu.c b/mm/nommu.c
index 989e2e9af5c3..8bbbf147a794 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -367,6 +367,11 @@ struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr)
367 return find_vma(mm, addr); 367 return find_vma(mm, addr);
368} 368}
369 369
370int expand_stack(struct vm_area_struct *vma, unsigned long address)
371{
372 return -ENOMEM;
373}
374
370/* 375/*
371 * look up the first VMA exactly that exactly matches addr 376 * look up the first VMA exactly that exactly matches addr
372 * - should be called with mm->mmap_sem at least held readlocked 377 * - should be called with mm->mmap_sem at least held readlocked